85 points

Yes, but then it’s slower for your computer to talk back to your Wi-Fi, so it ends up cancelling out

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3 points

Interestingly, this could be true and you could never find out experimentally iirc.

I watched a veritasium video about the 1 way speed of light vs 2 way that talked about it.

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40 points

Push-Pull Config

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10 points

We can streamline this by making the room into 2 small tunnels from the router to the PC. This way there will be less obstacles in the room. But we need to add leafblowers on each side with a boost button.

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2 points

you could also hook into the router and wireless card of the computer to make each of them turn on the corresponding leaf blower whenever they’re sending something. of course you’d probably have to implement some kind of queuing system so only one blower is active at a time, but it will all be worth it for the speed gains

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2 points

What if we make the tubes really really small and wrap them in many protective layers to prevent other wind sources from messing with the signal.

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3 points

LOL! Yes, one has to consider this. ZOMG your’s is the best comment!

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0 points

Le reddit moment tips cap to you sir

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16 points

Not inherently stupid question; they just don’t know that radio waves don’t travel through air but through space.

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1 point

It’s not much of a stupid question even given that - for a refractive medium, speed of light can change with its movement. Though for air it’ll be extremely hard to directly notice; it has n≈1.0003 so speed of light in air is already 0.9997c, and increasing it to, say, 0.9998c would require moving the air at 0.166c.

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2 points

they just don’t know that radio waves don’t travel through air but through space

does this mean radio waves can go to mars? if so, why don’t we ride them to mars?

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1 point

You’d need a very small saddle.

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5 points

But air is empty space?! /s

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40 points

Yeah, but it evens out since now your messages going back to the router have to swim upstream.

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5 points

Could this be remedied by sending packets on a second antenna, with a fan blowing in the opposite direction?

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4 points

Only if the two air streams don’t intersect, otherwise you’ll create a dead zone. Modern signal jammers are actually highly sophisticated fans.

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3 points

You must never cross the streams

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3 points

If it changes the air pressure, changing the refractive index, it will affect how fast the waves will travel. If you put it behind the router blowing towards the computer, does that increase the pressure? Then it would slow down I think. But this would only make a difference for a single wave packet; any real connection sends many packets and would be limited by the frequency of packets sent.

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13 points

If you had a fan blowing out the window, it could slightly reduce the density of the air in your house, leading to a tiny increase in the speed of light through it, so that would make the waves technically faster, but by a vanishingly small margin

It wouldn’t increase the bitrate of your router at all, so it wouldn’t make a difference, but the waves would be faster

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2 points

Bitrate wouldn’t change, but it would reduce latency by a tiny amount.

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With less matter for the photons to interact with, I assume the WiFi’s SNR would be improved. If fewer data frames need to be retransmitted at the link layer (WiFi), I figure the apparent bitrate at the IP level might actually be improved!

Actually, I would not be shocked if WiFi itself adapts to conditions, e.g. by sending less data per frame with more error correction bits when SNR is already low.

(Not a networking expert, I am just bullshitting.)

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